Solve the problem.A ball on the end of a string is spinning around a circle with a radius of 5 centimeters. If in 
a central angle of 
radian has been covered, what is the angular speed of the ball?
A. 3 radians per sec
B. 
radians per sec
C. 75 radians per sec
D. 
radian per sec
Answer: D
Mathematics
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For what value of the constant c is the function f continuous on (–?, ?)?
Select the correct answer.
a. c = 1
b. c = 5
c. c = –2
d. c = –5
e. c = 2
Mathematics
Solve the problem.A rug is to fit in a room so that a border of even width is left on all four sides. If the room is 12 feet by 15 feet and the area of the rug is 108 square feet, how wide will the border be?
A. 1 ft B. 1.5 ft C. 3 ft D. 2.2 ft
Mathematics
Find the second-order partial derivative.Find gyy when g(x,y) = 
.
A. 
B. - 
C. 
D. - 
Mathematics
Multiply.
A. - 
B. - 
C. - 
D. 
Mathematics